| Macros | |
| #define | CS_ADJACENCY_SHARED (1 << 0) | 
| #define | CS_ADJACENCY_STRIDE (1 << 1) | 
| #define | CS_ADJACENCY_SIGNED (1 << 2) | 
structure
| #define CS_ADJACENCY_SHARED (1 << 0) | 
1: Members of the structure are shared with a parent structure
| #define CS_ADJACENCY_SIGNED (1 << 2) | 
4: Ajacency has a sgn member to known how is oriented each element
| #define CS_ADJACENCY_STRIDE (1 << 1) | 
2: Ajacency relies on a stride. No index are used to access ids